The female person offense case rate grew steadily between 1985 and the late 1990s, increasing more than 170% during the period. After a period of stability, the female person offense case rate again increased, reaching a new peak in 2005. Between 2005 and 2011, the female person offense case rate decreased 23%. Comparatively, the male rate increased 92% between 1985 and its 1995 peak, then generally declined. By 2011, the male person offense case rate was 36% below the 1995 peak.

As a result of the large increase in female person offense case rates, the disparity in male-female case rates declined somewhat between 1985 and 2011. In 1985, the male person offense case rate was about 4 times the female rate; by 2011, the male rate was 2.5 times the female rate - 13.6 compared with 6.5.